Second-Largest Asteroid in the Solar System May Be an Ancient Piece From a Lost Planet, Claim Scientists Space exploration ...

Though they don't orbit around our sun, sub-Neptunes are the most common type of exoplanet, or planet outside our solar ...

Vesta might be a shattered remnant of an early planet, not a failed one—forcing scientists to rethink how worlds begin.

A 9th planet in our solar system might be found — and no, it’s not Pluto - Is there another planet out there? Researchers say ...

NASA scientists have sought to understand planet Jupiter, the gas giant whose mass is more than the rest of the planets in ...

While the spring semester is winding down, the University of Wyoming Harry C. Vaughan Planetarium is amping up its offerings ...